diff --git a/android/src/main/kotlin/com/example/flutterimagecompress/ext/BitmapCompressExt.kt b/android/src/main/kotlin/com/example/flutterimagecompress/ext/BitmapCompressExt.kt
index 0a9e4c2..7737c2c 100644
--- a/android/src/main/kotlin/com/example/flutterimagecompress/ext/BitmapCompressExt.kt
+++ b/android/src/main/kotlin/com/example/flutterimagecompress/ext/BitmapCompressExt.kt
@@ -67,5 +67,5 @@ fun Bitmap.calcScale(minWidth: Int, minHeight: Int): Float {
 }
 
 fun convertFormatIndexToFormat(type: Int): Bitmap.CompressFormat {
-  return if (type == 1) Bitmap.CompressFormat.PNG else Bitmap.CompressFormat.JPEG
-}
\ No newline at end of file
+  return if (type == 1) Bitmap.CompressFormat.PNG else if (type == 3) Bitmap.CompressFormat.WEBP else Bitmap.CompressFormat.JPEG 
+}